Patent · US Expired

Bearing support of a throttle valve shaft in the housing of an exhaust gas line

US4877339A · kind A · utility

12Cited by

4References

8Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Hans-Dieter Schuster · Schorndorf, DE
Christoph Noller · Königsbrunn, DE
Gottfried Wollenraupt · Stuttgart, DE
Reiner Kreeb · Stuttgart, DE
Roland Ludwig Huss · Pegnitz, DE

Key dates

Filing date	Jan 31, 1989
Grant date	Oct 31, 1989
Priority date	—
Expiry date	Jan 31, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S384/903
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to bearing support of a throttle valve shaft in the housing of an exhaust gas line in which the shaft is rotatably supported on both sides in a bearing sleeve element constructed cup-shaped. The cups themselves are retained by spring force against the housing extending correspondingly conically within these areas. In order to keep small the actuating forces necessary for the rotation of the throttle valve shaft, each bearing sleeve element is retained by itself against the housing by means of a spring supported at the housing and the securing of the shaft against any axial displacement takes place by a separate axial bearing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.